Studies on structural and thermal expansion properties of Ho{sub 2-x}Ln{sub x}Mo{sub 4}O{sub 15} (Ln = Er, Sm and Ce) solid solutions.
Three new series of Ho{sub 2-x}Er{sub x}Mo{sub 4}O{sub 15} (x = 0.0-2.0), Ho{sub 2-x}Sm{sub x}Mo{sub 4}O{sub 15} (x = 0.0-0.6) and Ho{sub 2-x}Ce{sub x}Mo{sub 4}O{sub 15} (x = 0.0-0.25) solid solutions have been prepared successfully by solid-state reaction and studied by powder X-ray diffraction. All the XRD patterns of these molybdates can be indexed in monoclinic space group P2{sub 1}/c. Lattice parameters a, b and c of Ho{sub 2-x}Ln{sub x}Mo{sub 4}O{sub 15} decrease linearly with increasing erbium content and increase with increasing samarium or cerium content. Thermal expansion behaviors of Ho{sub 2-x}Ln{sub x}Mo{sub 4}O{sub 15} have been investigated in the 25-500 C temperature range with high-temperature X-ray diffraction. The temperature dependence of Mo(2)-O14 interaction looks like to be responsible for their thermal expansion behaviors.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1000658
- Report Number(s):
- ANL/MSD/JA-68443
- Journal Information:
- J. Alloys Compd., Journal Name: J. Alloys Compd. Journal Issue: 1-2 ; Jul. 28, 2008 Vol. 460; ISSN 0925-8388
- Country of Publication:
- United States
- Language:
- ENGLISH
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